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17-4PH-H925 Forging, tubing, and rings: MIL-HDBK-5J Design Allowables

show US units (ksi, Msi, lb/in³) open the MIL-HDBK-5J tool compare against temperature find alternatives

Material class	Steel
Alloy / temper / form	17-4PH / H925 / Forging, tubing, and rings
Specifications	AMS 5643
Handbook	MIL-HDBK-5J, 31 January 2003, section 2.6.9.0, Table 2.6.9.0(d) (pdf page 198 of the chapter file)
Dimension bands	1
Density	7806 kg/m³

Design Mechanical and Physical Properties (room temperature)

Converted from the handbook table (ksi, Msi, lb/in³) and rounded to 4 significant figures; dimension bands in inches with mm in parentheses. Bases: A and B are statistical minimums (99 % and 90 % probability at 95 % confidence), S the specification minimum. Grain directions: L longitudinal, LT long transverse, ST short transverse.

Dimension band		0–8 in (0–203.2 mm)
Specification		AMS 5643
Basis		S
F_tu, MPa	L	1172
F_ty, MPa	L	1069
e, %	L	10
E, GPa		196.5
E_c, GPa		206.8
G, GPa		77.22
ν		0.27
ρ, kg/m³		7806

Effect of Temperature

Percent of the room-temperature value against temperature, digitized from the handbook figures (the shortest exposure of each figure, every 10 °F). Strength curves give the allowable at temperature; "after exposure" curves give the room-temperature property after a soak at that temperature.

Strength allowables at temperature, percent of room temperature

°C	F_tu	F_ty
38	99.5	98.6
93	95.1	94.1
149	91.9	90.5
204	89	87
26	85.9	83.5
316	83.9	80.6
371	81.7	78
427	78.1	74.3
538	60.1	54.3

Factors in percent of the room-temperature allowable.

Other 17-4PH Tables

17-4PH Investment Casting (Table 2.6.9.0(f))
17-4PH-H1000 Investment Casting (Table 2.6.9.0(f))
17-4PH-H1025 Bar (Table 2.6.9.0(e))
17-4PH-H1025 Forging, tubing, and rings (Table 2.6.9.0(d))
17-4PH-H1025 Sheet, strip, and plate (Table 2.6.9.0(b))
17-4PH-H1075 Bar (Table 2.6.9.0(e))
17-4PH-H1075 Forging, tubing, and rings (Table 2.6.9.0(d))
17-4PH-H1075 Sheet, strip, and plate (Table 2.6.9.0(b))
17-4PH-H1100 Bar (Table 2.6.9.0(e))
17-4PH-H1100 Forging, tubing, and rings (Table 2.6.9.0(d))
17-4PH-H1100 Investment Casting (Table 2.6.9.0(f))
17-4PH-H1100 Sheet, strip, and plate (Table 2.6.9.0(b))
17-4PH-H1150 Bar (Table 2.6.9.0(e))
17-4PH-H1150 Forging, tubing, and rings (Table 2.6.9.0(d))
17-4PH-H1150 Sheet, strip, and plate (Table 2.6.9.0(b))
17-4PH-H1150Ma Bar (Table 2.6.9.0(e))
17-4PH-H1150Ma Forging, tubing, and rings (Table 2.6.9.0(d))
17-4PH-H900 Bar (Table 2.6.9.0(e))
17-4PH-H900 Forging, tubing, and rings (Table 2.6.9.0(d))
17-4PH-H900 Sheet, strip, and plate (Table 2.6.9.0(b))
17-4PH-H925 Bar (Table 2.6.9.0(e))
17-4PH-H925 Sheet, strip, and plate (Table 2.6.9.0(b))

Source and Use

U.S. Department of Defense (2003). Metallic Materials and Elements for Aerospace Vehicle Structures. MIL-HDBK-5J, 31 January 2003 (public domain). The values are the handbook's design allowables as extracted from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ. No warranty is given.